Seal for pipe-unions.



No. 800,201. I PATENTED DE0.5,1905. B. 0. sIsoo.. v

SEAL FOR PIPE UNIoNs;

APPLIOATION FILED JULY 31, 1905.

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' blank or piece of flexible metal of' any desired 4 of the band is provided throughout its length IINITEE srrA'rEs oEEIcE` IIENEY o. sIsco, or ANDERSON, NDIANA, Ass-IeNoE or ONE-HALE To -e H. L. MILnsPAUeH,-OE ANDERSON, INDIANA.

f SEAL Fon PiF-*-f-UNINS. l

To a/ZZ whom/.it may concern,.-

Be it known that I, HENRY C. SIsoo, a citizen of the United States, lresiding at Anderson, in the county of Madison,State of Indiana, have invented certain newl and useful Improve-v ments in Seals for Pipe-Unions, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a seal for-pipeunions, and particularly to a* device of that character formed from a single blank or piece vof material.

lThe invention has for I an object to provide a seal having bands at its opposite ends to encircle and protect the ends of the pipe joint or union and with an intermediate slitted portion expanded laterally to form a Like letters of reference refer to like partsj throughout the several figures of the drawings.- f

The seal is preferably formed of a single character. For instance, as shown in Fig. 3, the. body portion A has-its opposite side` portions A bent upon themselves on thedotted lines A2 to form a reinforcing-band at each end of the seal, which band closely encircles and' reinforces the ends ofthe seal when the parts are drawn tightly in position. The body A witha seriesof Aparallel slits or cuts extending transversely thereof, and the blank is then compressed in a transverse direction to expand the'central slitted portion thereof outward` into the position shown in Fig. 2-to form a cylindrical portion inl. which vthe nut B of the union may be inclosed. `It is also desirable to tightly apply the union, sothat the angle faces of its nut may project through the expanded slits A3 of the seal, and thus-be held against any possible slipping or rotative movement after the parts are applied. The bent-portionsA'A at the opposite ends of the union closely surround the pipe-receiving members Specification of' Letters Patent. Applicationled July 31, 1905. Serial No. 272,059.

k:Patented Dec. 5, 1905.

Bf thereof, therebycompletely covering and sealing the ends of the pipe-union. When the seal is applied in position, it may be held tightly surrounding the union in any desired manner-for instance, by the usual-seal A* applied thereto by means of wire extending from anaperture C5 in one end of the seal and between the expanded members thereof.

When the'seal is applied in position, as be- 6 fore described, it will be seen that unauthor- ,ized access to the pipe-union is prevented, as

well as accidental movement or rotation of the nut B thereof, since thecentral expanded portion completely surrounds and holds this nut, while the band tightly encircles the ends of the union in order to seal the same. The seal is also adjustable fory different sizesof unions, as

it may be expandedcircumferentially and ltightly fitted thereto.

It will also be observed that the seal'does not bend or open at any s ingle point, but the opening-and-closing movement thereof is even, owing to the exible character ofthe material. which renders it capable of continued usewithout danger of breakage or other injury. v Having now described my invention and set forth vits merits, whatI claim, and desire to seeure by Letters Patent, is-

e 1.- A seal for a pipe-union comprising band portions at its opposite ends and an intermediate slitted portion expanded laterally of the body.

2. A seal for a pipe-union comprising a single'piece of iexible material having its longitudinal edges bent upon themselves to form band portions and provided intermediate of said edges with a series 'of parallel transversely'rextending slits adapted to be expand'- 'ed laterally when the blank is bent into cylindrical form.

3. In a seal for a pipe-union, the combination with a union, of a seal formed of iexible material vhaving at its opposite ends bent porl tions'to closelyencircle the ends of said union,

and provided 'intermediate of its ends with a slitted portion: laterally expanded to surround the nut'of the union and receive an angle-face thereof within said slitted portion.-

. In testimony whereof I aliix my signature in presence of two witnesses. l

ENEY o. sIsco.

IOO 

